The curly long-chain molecular structure of Dongguan rubber shock-absorbing parts and the weak secondary forces existing between the molecules make the rubber material exhibit unique viscoelastic properties, and therefore has good shock absorption, sound insulation, and cushioning properties. Rubber parts are widely used for vibration isolation and shock absorption because of their characteristics of hysteresis, damping and reversible large deformation
The role of rubber seals in Dongguan is to close the gap in the chamber and to prevent dirt, sand and other dirt from intruding into the interior of the chamber. If rubber seals from Dongguan are improperly installed or used, it can easily cause oil leakage and affect the machine. In normal operation, a 75-a burns a bearing, breaks a gear, twists off a drive shaft, or other serious problem. When installing the skeleton oil seal
First, large-size, large-size O-ring production process
1, the selection of large-size O-rings should pay attention to the following technical details
(1) To calculate the pre-stretch rate (piston seal) or pre-compression rate (piston rod seal), the area shrinkage;
(2) Pay attention to the compatibility of the seal and the sealed liquid, taking into account the swelling of the seal;
The rubber O-ring developed by Dongguan Rubber Materials Co., Ltd. is suitable for use in petroleum-based hydraulic oils, glycol-based hydraulic oils, diester-based lubricating oils, gasoline, water, silicon greases, and silicone oils. It is the most widely used and lowest cost rubber seal. Not suitable for use in polar solvents such as ketones, ozone, nitrohydrocarbons, MEK, and chloroform. The general use temperature range is -40~200°C. HNBR Hydrogenated Nitrile O-rings: Excellent resistance to corrosion, tear and compression, ozone resistance, sunlight resistance, and weather resistance.
